ORIGINAL: fabrimacator21

Don't get the hitech... If your gonna spend that much money go with the futuba s9351 for $120. Look at the difference in the specs.

hitch 645 specs:
Speed: 0.24 sec/60° at 4.8V
0.20 sec/60° at 6.0V
Torque: 106.93 oz-in at 4.8V (7.7 kg-cm)
133.31 oz-in at 6.0V (9.6 kg-cm)
Length: 1.59" (40.6mm)
Width: 0.77" (19.8mm)
Height: 1.48" (37.8mm)
Weight: 2.11oz (60g)

futuba s9351 specs

Speed: .16 sec/60° @ 4.8V; .13 sec/60° @ 6V
Torque: 153 oz-in @ 4.8V; 192 oz-in @ 6V
Weight: 2.1oz (61g)
Length: 1.57" (40mm)
Width: .8" (20mm)
Height: 1.44" (36.6mm)

Weighs the same, is faster and has another 60 oz in of torque. I currently run this servo and am VERY happy with it. It will flip a maxx in a heartbeat if you want it to.

Futuba link: http://www3.towerhobbies.com/cgi-bin...&I=LXDTB2&P=ML